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Finding the Fourth Proportional to 255,581.75, 383,376.60 and 75,685.37

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Solution

The fourth proportional to 255,581.75, 383,376.60 and 75,685.37 is: 113,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,581.75 : 383,376.60 = 75,685.37 : x
  2. Step 2: Convert to fraction form
    255,581.75/383,376.60 = 75,685.37/x
  3. Step 3: Cross multiply
    255,581.75x = 383,376.60 × 75,685.37
  4. Step 4: Simplify right side
    255,581.75x = 29,016,001,138.20
  5. Step 5: Solve for x
    x = 29,016,001,138.20/255,581.75
  6. Step 6: Final answer
    x = 113,529.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.